# Relationship history for MSHA mine 2601682

Current hierarchy: **Elias Allan → Miracle Mining Inc → Miracle Mining**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Helo Research & Development Inc → Miracle Mining; 1980-11-01 to 1983-01-18; source msha-controller-operator-history
- **controller_controls_mine:** Henderson Jerry C → Miracle Mining; 1980-11-01 to 1983-01-18; source msha-controller-operator-history
- **controller_controls_operator:** Henderson Jerry C → Helo Research & Development Inc; 1980-11-01 to 1983-01-18; source msha-controller-operator-history
- **operator_operates_mine:** Miracle Mining Inc → Miracle Mining; 1983-01-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Elias Allan → Miracle Mining; 1983-01-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elias Allan → Miracle Mining Inc; 1983-01-19 to current/open; source msha-controller-operator-history